Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/07/2024, 17:49

General

  • Target

    21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe

  • Size

    1.6MB

  • MD5

    a51b6ea36c95074022a1d75cf50ff03d

  • SHA1

    68d264386d390d0f8395895d69ec1d629c4d0361

  • SHA256

    21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55

  • SHA512

    7df03e9ff1d4dd7d2376d7274cbc201b449aea002d7a4a543dd2b06502b42931db49b50629d2d50de569b907b1aca038a497ff81ecd2b853b6dac899b12b37ca

  • SSDEEP

    24576:97+ruBJ+lZfz3ObxtBEImd0fcU0vbC50j1Z8bDeL/EapfnGmnIV6BU8SHD1NJcjl:97xSd0fcU0vbCWjM2L/E0nGmZUnHRWt

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3432
      • C:\Users\Admin\AppData\Local\Temp\21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe
        "C:\Users\Admin\AppData\Local\Temp\21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a9ED0.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:448
          • C:\Users\Admin\AppData\Local\Temp\21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe
            "C:\Users\Admin\AppData\Local\Temp\21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe"
            4⤵
            • Executes dropped EXE
            PID:1920
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4836
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2184
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:3352

      Network

            MITRE ATT&CK Enterprise v15

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            Downloads

            • C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe

              Filesize

              244KB

              MD5

              3c2203f349aa22e2046dc72ad062b9f7

              SHA1

              93d78bcc8ee5a0c33deb724d7b1e5bd54577de8a

              SHA256

              e341c06beacaa19de066408d9fb71b11f9def1634b9f3650ed8597a7a3355bce

              SHA512

              9123d8606942b0ad0b8b5b4609ba0b1ca77a00b3ab9f33885b71d83ad21785d310489a5122eabcc5f6adef162e63702253daea83b51d65ce4fffb8d7c96628e8

            • C:\Program Files\7-Zip\7z.exe

              Filesize

              570KB

              MD5

              3ad01c25e51b74ccb86fc1d464457d9a

              SHA1

              da942110137984eaaf7dad09c7edc0ce97b04982

              SHA256

              4e1e4ec693ee8b37e6bef82e78212087048199b70d8cdc0f944b51731f7e159d

              SHA512

              03e888cfdf02142ece1910051932b90695a849193d15dfe4abc2feb81b7f338ead021250bd096c208a01f219af412a9c601730966b61b6383de765d68658448f

            • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe

              Filesize

              636KB

              MD5

              2500f702e2b9632127c14e4eaae5d424

              SHA1

              8726fef12958265214eeb58001c995629834b13a

              SHA256

              82e5b0001f025ca3b8409c98e4fb06c119c68de1e4ef60a156360cb4ef61d19c

              SHA512

              f420c62fa1f6897f51dd7a0f0e910fb54ad14d51973a2d4840eeea0448c860bf83493fb1c07be65f731efc39e19f8a99886c8cfd058cee482fe52d255a33a55c

            • C:\Users\Admin\AppData\Local\Temp\$$a9ED0.bat

              Filesize

              722B

              MD5

              43c27a9bee3d5f5d2410fb18fef34c2d

              SHA1

              594ce7c5ea28d132bfde205987f4063388c8cca5

              SHA256

              71e394b416d46d111089980905e0db035e731f40fe857913b7e140cd474402ab

              SHA512

              c596cc28a0858b6f3cb44b691b7bcf12910b1338afffedee02ca2345bedbb7827431a9ee852949aa3488a99a06017430f634c89bc7becb5fd42d8e0aff4398ac

            • C:\Users\Admin\AppData\Local\Temp\21b2fe6f61a3addeefd5375d6b9220016c9d0de6df80242c2771c0c2c24d6d55.exe.exe

              Filesize

              1.6MB

              MD5

              2f1b439fd1f15f43152be897992846be

              SHA1

              d228752fc169c6ade421478f91e1b7bbf69d65c5

              SHA256

              d336a0b1a4a71f31730877b98c8ca6bf1f32543bcd910bed7c0f3e7f26a25f47

              SHA512

              57d9f6b9c0a62027c45ebb3627faf8b44ec7c66d4635d057a6871b2507ca52d68d871b63b0869181abef5de7053e9e37efd62ea1f5c5e46dc7e2055d7599dcd9

            • C:\Windows\Logo1_.exe

              Filesize

              26KB

              MD5

              11ea1edd35759a6d8d4b6c8cdbcef148

              SHA1

              758e0f7e1742f411e3835ca691cf64c24756945d

              SHA256

              76317f6340de7844413cbb84531dc8be88600eb35dfafeaf2a55db88cd9ead16

              SHA512

              aabd5cc419ecaca3bfeccdd8b5af08cb331974aa781245341a7e91247eac8dafb086e0a413348cd16fb56afe6d522a31a940afc03ca1dff481d7b20f0cfc4ceb

            • F:\$RECYCLE.BIN\S-1-5-21-1176886754-713327781-2233697964-1000\_desktop.ini

              Filesize

              9B

              MD5

              2efce5174bcf8d378a924333f75e26ad

              SHA1

              4fe6e1d729b55d42eb9d74aca11b36a94402de14

              SHA256

              04ccb9bec2864153c72852867d8e65dca07eca4e5edcfb4beb62cb364dcd91fa

              SHA512

              24684969632fb0562a3a7a5fec91d869d627730d8e9d83a2b17e326d7047e3fbff205eec207914e42ecd50fef68a212c19f3599ded271c00e66acc22f1f04c16

            • memory/1576-12-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/1576-0-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-27-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-37-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-33-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-1233-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-20-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-4800-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-13-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/4836-5245-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB